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Intelligent Solutions in Embedded Systems (WISES), 2013 Proceedings of the 11th Workshop on

Date 10-11 Sept. 2013

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Displaying Results 1 - 16 of 16
  • [Front cover]

    Publication Year: 2013 , Page(s): 1
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  • Preface

    Publication Year: 2013 , Page(s): 1 - 9
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  • A hierarchical hybrid model for intelligent cyber-physical systems

    Publication Year: 2013 , Page(s): 1 - 6
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (139 KB) |  | HTML iconHTML  

    Cyber-physical systems are now widespread in applications of paramount importance, from traffic control to healthcare and robotics applications. Modelling cyber-physical systems making use of artificial intelligent methodologies is very difficult, because of unpredictability in AI algorithms timing performances. This paper proposes a methodology to model Intelligent Cyber-Physical Systems, relying on hierarchical hybrid models. The proposed modelling method is used to develop an autonomous robot for face-detection and face-recognition, and some experiments were proposed to validate its performances. View full abstract»

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  • RFID systems from a cyber-physical systems perspective

    Publication Year: 2013 , Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (233 KB) |  | HTML iconHTML  

    This paper surveys and compares various definitions of cyber-physical systems occurring in contemporary research literature and relates them to RFID system research. In comparing the major characteristics of both we conclude that RFID systems are very similar to CPS and develop a topology of CPS that includes RFID. To frame the discussion of RFID systems closer we also develop a formal model that allows for the specification of RFID systems and explore the models' suitability to express a wider range of CPS. View full abstract»

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  • A new approach to increasing energy efficiency by utilizing cyber-physical energy systems

    Publication Year: 2013 , Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (305 KB) |  | HTML iconHTML  

    Cyber-Physical Systems and Industry 4.0 topics are in the focus of research. Especially energy management systems can be improved with new opportunities due to interconnected systems. Cyber-Physical Energy Systems (CPES) will help to handle the use of volatile renewable energies and to realize intelligent shut down strategies. This paper gives an overview about current CPES research topics and shows an approach, which helps to reduce the energy consumption. The main aspects are avoidance of peak loads and reduction of base load from the perspective of a car manufacturer. View full abstract»

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  • Video camera and capacitive sensor data fusion for pedestrian protection systems

    Publication Year: 2013 , Page(s): 1 - 7
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1131 KB) |  | HTML iconHTML  

    In this paper a cyber-physical system is proposed to detect and classify a vehicle-pedestrian collision before the time of impact in order to trigger safety functions. A device for pedestrian protection can be activated in case of a collision with an appropriate interpretation of the current situation by noncontact sensing. A system concept consisting of an intelligent sensor fusion of a mono video sensor and a capacitive sensor is presented. The described system predicts a pedestrian collision and validates the detection with a capacitive sensor. A very precise temporal and local prediction of the pedestrian collision with the bumper of a car is possible in order to activate pedestrian protection actuators in time. View full abstract»

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  • Simulation environment for real-time applications 3D visualisation/simulation environment for testing real-time electronic control units

    Publication Year: 2013 , Page(s): 1 - 5
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (420 KB) |  | HTML iconHTML  

    Rapid prototyping and not last, training in the state of the art technologies for the automotive development requires virtual test environments that are easy to build and configure. The present paper details the planning and the assembling of such a system after a thorough analysis of current standards and products in this field. The investigated solutions reach out to open source solutions for the 3D visualization and simulation. It uses the Simulink simulation environment and industry relevant toolboxes for the development, testing and integration of electronic control units. The solution is based on the two relevant automotive bus systems, FlexRay and CAN. View full abstract»

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  • SEEDrive — Using in-car serial-bus systems for safe and energy efficient driving

    Publication Year: 2013 , Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (383 KB) |  | HTML iconHTML  

    Beside the technical optimisation of the vehicle, energy-efficiency and road safety can be increased by optimising the driving behaviour as well. Based on this fact SEEDrive has the goal to educate the driver in energy-efficient and safe driving. In this paper the Data Layer of SEEDrive is introduced, which is responsible for the data acquisition and preparation as well as the generation of the driving profile. The information from the car, the driver and the environment is gathered using the in-car serial-bus systems as well as vital- and environment sensors. The incoming data is then aggregated using fuzzy logic for further processing. Finally, the Data Layer generates a driving profile, which represents the normal driving behaviour of the driver. On the basis of the information provided by the Data Layer, SEEDrive adapts itself to the individual driving behaviour and gives adequate recommendations, regarding energy-efficiency and safety. This allows eliminating bad driving habits, while considering the driver needs. View full abstract»

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  • Estimation of SNM in latches and subsequent formation of a 10T CNFET bitcell

    Publication Year: 2013 , Page(s): 1 - 5
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (770 KB) |  | HTML iconHTML  

    This paper discusses the Static Noise Margin (SNM) for various configurations of latches, including radiation hardened latches using Schmitt Triggers with CMOS and CNFET models both., using the Butterfly Curve method. A bitcell is proposed based on the latch with the highest SNM, and its readability and writeability is estimated via the N-Curve method. Comparisons are made between the proposed 10T CNFET biteell and the basic 6T CMOS bitcell. View full abstract»

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  • Conventional and hybrid bit-Stream in real-time system

    Publication Year: 2013 , Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (431 KB) |  | HTML iconHTML  

    This paper proposes a novel approach of designing functional blocks to implement Proportional, Integral and Derivative action in hybrid bit-stream environment. The developed functional blocks which do not convert the element output to bit-stream signal assure the minimization of the noise inside the controller by avoiding bit-stream converter, save more hardware resources and reduce the design complexity comparing to the conventional bit-stream elements. Proposed bit-stream controller reduces the number of interface channels between the controller and other parts of the system from multiple to single channel, thereby consumes significantly less hardware resources compared to traditional multi-bits processing. The feasibility and effectiveness of the proposed bit-stream PID controller is experimentally illustrated for controlling the position of a DC Motor. View full abstract»

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  • A two-loop linear control utilizing ΔΣ modulator

    Publication Year: 2013 , Page(s): 1 - 6
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (588 KB) |  | HTML iconHTML  

    The traditional approach of controller implementation is based on multi-bit signal processing. The present paper proposes an alternate approach of controller implementation based on single-bit signal processing. This requires less interface channels between the controller and other parts of the system and thereby consumes significantly less hardware resources compared to traditional multi-bit processing. The effectiveness of the proposed single-bit or bit-stream controller is experimentally illustrated by designing two single-bit PID controllers for controlling the position of a D.C. Motor. The outer loop PID controller is designed to provide appropriate reference for the inner speed control loop, which is controlled by an inner loop PID controller. Various functional blocks are designed to implement Proportional, Integral and Derivative action in single-bit environment. Experimental results from a laboratory prototype illustrate that the single-bit based PID controllers effectively controls the position and consumes approximately 500 logic elements (LE) on an Altera Cyclone FPGA. View full abstract»

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  • Acquiring energy data from a medium-voltage grid for future smart grid solutions: A practical smart grid application example realized by use of cellular communication networks of the 2nd and 3rd generation

    Publication Year: 2013 , Page(s): 1 - 8
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (11352 KB) |  | HTML iconHTML  

    In this paper we present a practical example of the use of Cellular Communication standards like GPRS and UMTS in a Smart Grid Application. For a more detailed view we demonstrate a possible implementation of Cellular Communication Technologies in a data acquisition application for the collection of energy indicators in a medium-voltage grid. Furthermore, we show a technical overview of relevant and common mobile communication standards available in Germany. The included theoretical examples, Smart Grid scenarios, presented data and results are based on a research project for intelligent power regulation in medium-voltage grids performed in Regensburg (Germany). It is a joint project' of the University of Applied Sciences Regensburg together with a local energy provider and a manufacturer for distribution network systems. View full abstract»

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  • Multinet — A wake-up protocol for multicast network groups

    Publication Year: 2013 , Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (167 KB) |  | HTML iconHTML  

    A distributed network management architecture is proposed, that enables a coordinated wake-up and sleep of peers within a switched network in embedded systems. Related stations are clustered in groups, can wake up their direct neighbors and propagate the wake-up reason. Stations use multicast for network management related communication, which facilitates addressing and reduces overall network load introduced by the protocol. The proposed architecture provides a service infrastructure to applications allowing them to request or suspend groups of network nodes. Functional principles are given and examples are shown on how applications may use the proposed services to realize different forms of network management in a sense of allowing stations which are not needed at a given time to shut down and preserve power. It is also shown that in case of failures, the system is able to maintain a safe and consistent state. View full abstract»

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  • LPC real-time speech transmission over 802.15.4

    Publication Year: 2013 , Page(s): 1 - 6
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (896 KB) |  | HTML iconHTML  

    The IEEE 802.15.4 is one of the most used protocols for wireless sensor networks requiring long battery life and low data-rate, and it has been used for the most different applications. Nevertheless, few works address the audio transmission over 802.15.4. This paper focuses on the implementation of a vocal audio transmission over a 802.15.4 network. Due to the low data-rate provided by the protocol, the speech has been compressed using a Linear Predictive Coding (LPC) technique, which ensures a fair trade-off between quality and compression ratio. This paper contains a detailed analysis of the LPC vocoder parameters optimization and a simulation of the network using SystemC, with a particular attention on the quality of the compressed speech. The LPC vocoder has been implemented using Matlab and its quality has been measured using the PESQ algorithm. View full abstract»

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  • Author's index

    Publication Year: 2013 , Page(s): 1
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  • [Back cover]

    Publication Year: 2013 , Page(s): 1
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    Freely Available from IEEE